vtkStructuredData.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkStructuredData.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef __vtkStructuredData_h
#define __vtkStructuredData_h

#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkObject.h"

class vtkIdList;

#define VTK_UNCHANGED 0
#define VTK_SINGLE_POINT 1
#define VTK_X_LINE 2
#define VTK_Y_LINE 3
#define VTK_Z_LINE 4
#define VTK_XY_PLANE 5
#define VTK_YZ_PLANE 6
#define VTK_XZ_PLANE 7
#define VTK_XYZ_GRID 8
#define VTK_EMPTY 9

class VTKCOMMONDATAMODEL_EXPORT vtkStructuredData : public vtkObject
{
public:
  vtkTypeMacro(vtkStructuredData,vtkObject);


  static int SetDimensions(int inDim[3], int dim[3]);
  static int SetExtent(int inExt[6], int ext[6]);


  static int GetDataDescription(int dims[3]);
  static int GetDataDescriptionFromExtent( int ext[6] );


  static int GetDataDimension(int dataDescription);
  static int GetDataDimension( int ext[6] );

  static int GetNumberOfNodes( int ext[6], int dataDescription=VTK_EMPTY );

  static int GetNumberOfCells( int ext[6], int dataDescription=VTK_EMPTY );


  static void GetCellExtentFromNodeExtent(
      int nodeExtent[6], int cellExtent[6], int dataDescription=VTK_EMPTY );


  static void GetDimensionsFromExtent(
      int ext[6], int dims[3], int dataDescription=VTK_EMPTY );


  static void GetCellDimensionsFromExtent(
      int ext[6], int celldims[3], int dataDescription=VTK_EMPTY );


  static void GetCellDimensionsFromNodeDimensions(
      int nodeDims[3],int cellDims[3] );


  static void GetLocalStructuredCoordinates(
      int ijk[3], int ext[6], int lijk[3], int dataDescription=VTK_EMPTY );


  static void GetGlobalStructuredCoordinates(
      int lijk[3], int ext[6], int ijk[3], int dataDescription=VTK_EMPTY );


  static void GetCellPoints(vtkIdType cellId, vtkIdList *ptIds,
                            int dataDescription, int dim[3]);

  static void GetPointCells(vtkIdType ptId, vtkIdList *cellIds, int dim[3]);


  static void GetCellNeighbors(vtkIdType cellId, vtkIdList *ptIds,
                               vtkIdList *cellIds, int dim[3]);


  static vtkIdType ComputePointIdForExtent(
      int extent[6], int ijk[3], int dataDescription=VTK_EMPTY );


  static vtkIdType ComputeCellIdForExtent(
      int extent[6], int ijk[3], int dataDescription=VTK_EMPTY );


  static vtkIdType ComputePointId(
      int dim[3], int ijk[3], int dataDescription=VTK_EMPTY );


  static vtkIdType ComputeCellId(
      int dim[3], int ijk[3], int dataDescription=VTK_EMPTY );


  static void ComputeCellStructuredCoordsForExtent(
      const vtkIdType cellIdx, int ext[6], int ijk[3],
      int dataDescription=VTK_EMPTY );


  static void ComputeCellStructuredCoords(
      const vtkIdType cellId, int dim[3], int ijk[3],
      int dataDescription=VTK_EMPTY );


  static void ComputePointStructuredCoordsForExtent(
      const vtkIdType ptId, int ext[6], int ijk[3],
      int dataDescription=VTK_EMPTY );


  static void ComputePointStructuredCoords(
      const vtkIdType ptId, int dim[3], int ijk[3],
      int dataDescription=VTK_EMPTY );

protected:
  vtkStructuredData() {};
  ~vtkStructuredData() {};


  static vtkIdType GetLinearIndex(
      const int i, const int j, const int k, const int N1, const int N2 )
    {
      return( (k*N2+j)*N1+i );
    }


  static void GetStructuredCoordinates(
      const vtkIdType idx, const int N1, const int N2,int &i, int &j, int &k )
    {
      int N12 = N1*N2;
      k = idx/N12;
      j = (idx-k*N12)/N1;
      i = idx-k*N12-j*N1;
    }

private:
  vtkStructuredData(const vtkStructuredData&);  // Not implemented.
  void operator=(const vtkStructuredData&);  // Not implemented.
};


#endif

// VTK-HeaderTest-Exclude: vtkStructuredData.h